//变量值得交换
//

# include <stdio.h>

int main ()

{
	int temp = 0;
	int a = 100,b = 200;
	printf("最开始的值为 a= 100, b = 200\n");
	temp = b;//temp=200
	b = a;//b=100
	a = temp;
	printf("最后的结果 a = %d, b = %d\n",a,b);

	return 0;
}
